Demonic Purge's recharge timer on the status buff visually resets when respawning, causing its cooldown to desync with the charges
When a charge is currently recharging, respawning during it causes the green sweep on the status buff icon to reset, while the actual recharge time is unaffected and continues normally. This can cause the cooldown to desync with the recharge time if the last charge is getting used after respawning.
Other spells affected by this are Cold Feet
, Stone Remnant
, Fire Remnant
and Homing Missile